/**
* @private
* @license	GNU GPLv2
*
* Copyright (C) 2007  Polly Jex.
* 
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
* MA  02110-1301, USA.
*
* @see	http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/

package com.kirika.data {
	
	/**
	 * @imports
	 */
	
	

	/**
	 * Define la API para la implementacion de un modelo basico de Pila.
	 * @author	Polly Jex (pollyjex@emc2zen.com.ar)
	 */
	public interface IStack extends IAvailability, ICapacity {
		
		/**
		 * Retorna el valor del siguiente elemento en la coleccion, pero no altera el puntero de lectura.
		 * @return	*
		 */
		function peek():*;
		
		/**
		 * Retorna y elimina, el primer elemento en la coleccion. 
		 * @return	*
		 */
		function pop():*;
		
		/**
		 * Inserta un elemento al comienzo de la coleccion.
		 * @param	value	Elemento a insertar.
		 * @return	void
		 */
		function push( value:* ):void;
	
	}
	
}